We point out the importance of direct readout by perpendicular ruler in measuring perpendicularity of a part or assembly.

提出了零件、部件在垂直度测检中直接读数的重要性和广泛性。

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Look at the flow of wrinkles from above, no matter which part is roughly perpendicular to the shoulder line.

从上面看皱纹的流向，无论哪一部分都大致垂直于肩线。

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It was found from these tests that using part perpendicular bilge-plate in some suitable places can effectively control the spray.

试验结果表明：在适当位置安装局部垂直舭板可以有效地压抑喷溅。

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